James is included in the "Titan" category, not only for his skills on the court but for the impact he's made away from it.

"LeBron has justified the adulation of millions and millions of young people, thanks to his ability to live up to enormous expectations on the basketball court, his business successes in Hollywood and media, and his new I Promise School for disadvantaged kids in his hometown of Akron, Ohio," wrote Warren Buffet, a billionaire investor who is friends with James.

"That adulation will make a positive difference in their lives. And you know what else is exciting? As great as he has been so far - on and off the court - you're just seeing the start of LeBron."

Woods is also included as a "Titan."

"Over the past few years, Tiger rehabbed rigorously from all the surgeries, and returned to the top of the game. While pundits doubted he'd ever win again, Tiger's commitment never wavered," singer Justin Timberlake wrote.

"The thing we don't always appreciate is the patience. Tiger spent countless hours in the gym, and on the golf course, with a singular goal in mind. All the work he did when people weren't watching allowed him to hug his children on the same hallowed ground he hugged his father 22 years ago, amid all the adulation, a Masters champion once again."